The Department of Consumer Affairs has sent notice to 17 New York restaurants, telling them that that they will have to close their sidewalk seating areas unless they are willing to comply with the city’s zoning regulations.

“Please be advised you have 100 business days from and including May 1 to complete one of the following options,” the agency notified owners on April 29, reported the New York Post. The restaurants were given the options to get a “certified land survey” to show they’re operating on private property, file for a zoning exemption or surrender their permits.